Toyota Venza: LVDS Signal Malfunction (from Extension Module) (B1532)
DESCRIPTION
The stereo component tuner assembly and the navigation receiver assembly are connected by the LVDS communication line.
This DTC is stored when an LVDS communication error occurs between the stereo component tuner assembly and the navigation receiver assembly.
|
DTC No. |
DTC Detection Condition |
Trouble Area |
|---|---|---|
|
B1532 |
When any of the following conditions is met:
|
|
HINT:
Even if no malfunction is present, this DTC may be stored depending on the battery condition or engine start voltage.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
After replacing the stereo component tuner assembly of vehicles subscribed to pay-type satellite radio broadcasts, XM radio ID registration is necessary.
PROCEDURE
|
1. |
CHECK NAVIGATION WIRE (STEREO COMPONENT TUNER ASSEMBLY POWER SOURCE) |
(a) Disconnect the V7 stereo component tuner assembly connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
V7-8 (GND2) - Body ground |
Always |
Below 1 Ω |
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
V7-4 (+B2) - V7-8 (GND2) |
Always |
11 to 14 V |
|
V7-3 (ACC2) - V7-8 (GND2) |
Ignition switch ACC |
11 to 14 V |
| NG | .gif) |
GO TO STEP 4 |
|
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|
2. |
REPLACE NAVIGATION WIRE |
(a) Replace the navigation wire with a new or known good one (See page
.gif)
).
(b) Clear the DTCs (See page ).
(c) Recheck for DTCs and check that no DTCs are output.
OK:
No DTCs are output.
| OK | |
END |
|
|
3. |
REPLACE STEREO COMPONENT TUNER ASSEMBLY |
(a) Replace the stereo component tuner assembly with a new or known good one
(See page ).
(b) Clear the DTCs (See page ).
(c) Recheck for DTCs and check that no DTCs are output.
OK:
No DTCs are output.
| OK | |
END |
| NG | |
REPLACE NAVIGATION RECEIVER ASSEMBLY |
|
4. |
CHECK NAVIGATION WIRE |
(a) Remove the navigation wire (See page ).
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance::
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
V1-4 (+B2) - V7-4 (+B2) |
Always |
Below 1 Ω |
|
V1-3 (ACC2) - V7-3 (ACC2) |
Always |
Below 1 Ω |
|
V1-8 (GND2) - V7-8 (GND2) |
Always |
Below 1 Ω |
|
V1-4 (+B2) - Body ground |
Always |
10 kΩ or higher |
|
V1-3 (ACC2) - Body ground |
Always |
10 kΩ or higher |
|
V1-8 (GND2) - Body ground |
Always |
Below 1 Ω |
| OK | |
REPLACE NAVIGATION RECEIVER ASSEMBLY |
| NG | |
REPLACE NAVIGATION WIRE |
Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART
Navigation System
DTC Code
Detection Item
See page
B1532
LVDS Signal Malfunction (from Extension Module)
...
Voice Recognition Microphone Disconnected (B1579)
DESCRIPTION
The navigation receiver assembly and inner rear view mirror assembly (amplifier
microphone assembly) are connected to each other using the microphone connection
detection signal lines ...
Other materials about Toyota Venza:
Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
If there are no DTCs output and the problem still occurs, check the circuits
for each problem symptom in the order given in the following table and proceed to
the relevant troubleshooting page.
NOTICE:
When replacing the brake act ...
Removal
REMOVAL
PROCEDURE
1. DISCHARGE FUEL SYSTEM PRESSURE
HINT:
See page
2. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL
NOTICE:
When disconnecting the cable, some systems need to be initialized after the cable
is reconnected (See page ).
3. REMOVE W ...
Reassembly
REASSEMBLY
PROCEDURE
1. INSTALL AIR OUTLET CONTROL SERVO MOTOR SUB-ASSEMBLY
(a) Check that the slots, links and gears of the air outlet control servo
motor sub-assembly are positioned in the correct orientation as shown in
the illustratio ...
0.1947